Uses

Cobwebs slow down any entities, including the Player, caught in them, making them useful for making traps and barriers. They can also be used to contain Water and Lava.

Obtaining

Cobwebs cannot be obtained using hands; they can only be obtained by using a Sword or Shears. However, if gathered using these tools normally, they will just drop String. Cobwebs themselves can only be obtained by breaking them using Shears with a Silk TouchEnchantment.